Business
Business is the activity of making one's living or making money by producing or buying and selling goods or services. Simply put, it is "any activity or enterprise entered into for profit. It does not mean it is a company, a corporation, partnership, or have any such formal organization, but it can range from a street peddler to General Motors." The term is also often used colloquially (but not by lawyers or public officials) to refer to a company, but this article will not deal with that sense of the word.
Business Administration
Business administration is management of a business. It includes all aspects of overseeing and supervising business operations and related field which include Accounting, Finance and Marketing.
Management
Management (or managing) is the administration of an organization, whether it is a business, a not-for-profit organization, or government body. Management includes the activities of setting the strategy of an organization and coordinating the efforts of its employees (or of volunteers) to accomplish its objectives through the application of available resources, such as financial, natural, technological, and human resources. The term "management" may also refer to those people who manage an organization.
Management
Understanding the concept of competency is a prerequisite to understanding his integrated model of management.
Richard Boyatzis (1982) Competent Manager: A Model for Effective Performance. p. 10
Business
In business affairs, it is the manner in which even small matters are transacted that often decides man for or against you.
Samuel Smiles. 'Men of business', Chapter 9, Self-Help (1859).
Management
A company will get nowhere if all of the thinking is left to management.
Akio Morita (1987). Made in Japan, p. 149